FIELD: mining.
SUBSTANCE: disconnect adapter for use in wellbore comprises a tubular nipple end, a tubular coupling end, a first seal, a second seal and a cavity. The tubular nipple end comprises the first portion having a first outer diameter, the second portion having a second outer diameter that is smaller than the first outer diameter and an external thread formed between the first and second portions. The tubular coupling end comprises an internal thread capable to cooperate with the outer thread of the tubular nipple end. The first seal is disposed adjacent to the first portion and the second seal is disposed adjacent to the second portion, the second seal is a movable seal comprising a spring and a sealing element. The cavity is made near the second portion to accommodate the second seal.
EFFECT: correct and safe interaction recovery of in the inter-well fluid medium.
16 cl, 6 dwg
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